Everything can be improved upon—even a great, classic car like a 1965-1973 Mustang! If you want to upgrade your master cylinder for enhanced braking performance, check out this Wilwood 261-13272-P Polished Aluminum Tandem Master Cylinder Kit with a 7/8" Bore Size for all 1965-1973 Mustangs from CJ Pony Parts.

Wilwood packages everything you would need to upgrade your master cylinder and proportioning valve for your 1965-1973 Mustang in this kit 261-13272-P. The popular Aluminum Tandem Chamber Master Cylinder represents the latest in brake pressure actuation and fluid control refinements. The slotted flange mounting, comprised of a bracket and hardware, makes bolting on easy for many OE mounts, including the popular Ford Mustang bolt pattern. The stainless steel button head fasteners that attach to the bracket makes for years of durable, rust-free performance. The combo valve and bracket are black, E-coated for a high performance look and long-lasting durability.

Please Note: This Master Cylinder Kit is fully compatible with Mustangs equipped with manual brakes. However, the 7/8" bore size will be too small to be used on power brake systems.

Assembly and installation of this direct-fit replacement master cylinder upgrade kit is easy. The combination proportioning valve simplifies wiring and brake proportioning adjustments for vehicles with custom brake systems. The combination block is fully isolated from the front and rear fluid circuits and is designed to accompany the tandem chamber master cylinder. The stainless steel tubes are precision bent with preinstalled stainless tube nuts for simple, bolt-on installation between the combination proportioning valve and the tandem master cylinder. Simply connect the fluid lines, bleed the system and you’re ready to go!

What power brake booster would I need to use to fit my 1966 mustang with a 302? I have willwood front disc brakes and am planning on ordering this master cylinder but would like to know what booster to purchase with it.

Asked by: OBV17

This Master Cylinder Kit is fully compatible with Mustangs equipped with manual brakes. However, the 7/8&quot; bore size will be too small to be used on power brake systems.

Answered by: rk cjpp

Date published: 2017-09-05

Will this work on my '67 with Wilwood discs up front, drums in rear and brake booster?

By Bill Tumas:
We’re here with a Wilwood polished dual bowl tandem master cylinder fitting a 1965 through 1973 Mustang. This polished aluminum
Wilwood tandem master cylinder can be used as an upgrade over the factory single bowl master cylinder on your '65 through '66
Mustang or also an upgrade over the factory master cylinder which is a dual bowl on your '67 through '73. It includes the
aluminum master cylinder assembly itself with a 7/8 inch bore, adjustable push rod, and a proportioning valve with bracket and a
built in brake line switch. All necessary fittings, lines, and hardware for installation are all included. This Wilwood master
cylinder will work with various brake configurations. It will work with either a manual or power bake setup.